国家/地区 中国（6）
IPC部 C（6）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C01B032/184（2） C01B032/19（2）
发明人 ZHANG R（6）
公开年 2019（3） 2020（3）
申请年 2019（6）
专利权人 UNIV YANSHAN（3）

Preparing nickel-cobalt oxide-graphene complex useful for coating glassy carbon electrode for detection of sodium sulfite comprises dispersing polyvinylpyrrolidone and nitrogen-doped graphene oxide, reacting, washing and vacuum drying.

HAN Y, GUO Y, LIU Z, ZHANG R

Catalyst used for methanation of carbon dioxide, hydrogenation of acetylene for producing ethylene and decomposition of ammonia to hydrogen, comprises graphene aerogel and nickel.

ZHANG R, HU F, FENG G, WANG D

Preparing sulfonated grapheme useful in energy storage comprises preparing saccharified graphene powder, ultrasonically dispersing into dichloromethane solution, adding chlorosulfonic acid, stirring reaction, washing and freeze-drying.

WANG L, ZHU K, TIAN H, TAN Y, ZHANG R, YU Z, LI W, HE Y, LAI Y

Method for preparing high-quality large-size graphene, involves ball-milling original graphite powder for short period of time to destroy graphite edge structure, and performing oxidation intercalation stripping at low temperature.

ZHANG R, WU W

Graphene preparation involves ultrasonically mixing natural graphite and peroxyacetic acid uniformly to form mixed liquid, and then carrying out microwave treatment of mixed liquid after standing at room temperature.

ZHANG R, WANG P

Preparing graphene quantum dots useful in the fabrication of devices, comprises e.g. reacting flake graphite with concentrated sulfuric acid, adding nitrate and potassium permanganate, reacting and diluting the reaction system with water.

ZHANG R, PENG S, LENG S